commit bash-20130125 snapshot

trap.c

@@ -456,6 +456,7 @@ any_signals_trapped ()
   return -1;
 }
 
+/* Convenience functions the rest of the shell can use */
 void
 check_signals_and_traps ()
 {
@@ -463,6 +464,12 @@ check_signals_and_traps ()
   run_pending_traps ();
 }
 
+void
+check_signals ()
+{
+  QUIT;
+}
+
 #if defined (JOB_CONTROL) && defined (SIGCHLD)
 
 #ifdef INCLUDE_UNUSED